Erbijsommen tot 20
Erbijsommen
|
1.
8 + 11 =
19
5
|
2.
4 + 14 =
6
18
|
3.
4 + 1 =
5
7
|
4.
16 + 2 =
18
12
|
|
5.
9 + 11 =
6
20
|
6.
11 + 5 =
16
6
|
7.
16 + 3 =
11
19
|
8.
12 + 4 =
10
16
|
|
9.
11 + 3 =
8
14
|
10.
18 + 1 =
19
12
|
11.
19 + 1 =
13
20
|
12.
15 + 4 =
11
19
|
|
13.
4 + 9 =
13
17
|
14.
16 + 4 =
11
20
|
15.
8 + 11 =
13
19
|
16.
13 + 7 =
20
10
|
|
17.
6 + 0 =
4
6
|
18.
11 + 5 =
11
16
|
19.
9 + 7 =
4
16
|
20.
19 + 0 =
19
14
|